[masraum]

Originally posted by lendaddy

And I belive the idea that a dogs mouth is cleaner than ours is an old wives tale.

Actually the mythbusters tested it and it seems to be true. The MB had a dog and a human lick a petri dish that had growth media on it. They then incubated the petri dishes for a period. At the end of the period the dish that the human had licked was covered in colonies of stuff but the dish that the dog had licked had a few speckles of colonies.

My guess is that it has to do with the fact that dogs put all sorts of stuff in their mouths so their mouths/saliva have to have some sort of natural antiseptic quality.